Construction and new-build mastic in Gavinton, Scottish Borders
Mastic packages for new-build and refurbishment projects in Gavinton. CHAS accredited and fully insured, with a 12-month guarantee.
- New external sealant already peeling away
- Internal caulk splitting as the building dries out
- Frame perimeters left unsealed or poorly sealed
Construction mastic in Gavinton
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Surface by surface
Internal decorators’ caulk
Caulking is often done in a hurry by whoever’s on site. Done properly, it saves decorators time and gives a clean line and keeps the snag list down.
External facade and movement joints
Brickwork, blockwork and panel movement joints need a sealant with the right movement capability. Depth is controlled with backing rod so the bead bonds to two sides only.
Construction mastic for commercial buildings in Gavinton
Mastic is often where a new building first shows its quality to the client. Untidy or missed joints are among the commonest snag items. We seal so the snag list stays short, area by area through the programme. The enquiries we see most involve existing joints on a refurb that need cutting out and resealing and oversized or tapered gaps around new frames, on internal decorators’ caulk, brick and block movement joints and cladding and panel joints. Most enquiries from Gavinton start with one failed joint and grow into a wider look at the building: we check the joints around it and give you an honest view of what needs doing now and what can wait.
Sites near smaller places like Gavinton can mean longer travel, so the mastic is planned with as few trips as the job allows. Clear drawings, a programme and photos let us bring the right sealants, primers and backing rod first time.
The 12-month guarantee covers our workmanship: preparation, application and finish. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.
- Location
- Gavinton (TD11)
- Wider area
- Scottish Borders
- Cover
- 12 months on our workmanship
- Quote
- Quoted before any work starts
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
Other services in Gavinton
On site: what to expect
In a busy building, we agree a sequence with your contact so the disruption stays in one area at once. Each area is protected, prepared and sealed before we move to the next. Tell us who will meet us and how to get in at your building near Gavinton. That goes into the plan alongside the quote.
- We price from the drawings, specification and programme you send.
- You receive a fixed quote listing scope, products and phasing.
- Any site paperwork you need (RAMS, insurance certificate, CSCS details) is confirmed with the quote.
- We seal each plot or floor as it’s released to us.
- Every joint is prepared, set to depth and sealed with the specified product.
- We close out snagging and hand over with a 12-month guarantee.
Before we start on site
- Tell us your opening times and when work is allowed
- Tell us what induction or permit system the site runs
- Share the asbestos register for older buildings
Quotes
For a fixed quote, speak to us on 01277 525 020 or email a schedule or drawings with the site address and an outline of the work. You can also send details through our quote form.
Related advice
Building and refurbishing in Gavinton
In Gavinton, as across Scotland, building warrants are issued by the local authority verifier under the Scottish regulations. The mastic follows the specification that goes with the warrant. Being in the east of Scotland, Gavinton gets less rain than the west coast. Frost and condensation on frames and panels can still hold up external mastic on winter mornings. External dates keep a little give.
New wings at hospitals like Knoll Community Hospital, 1.3 miles to the north-east of Gavinton, bring long runs of window and panel joints to seal. When units on a site such as Duns Industrial Estate, 1.3 miles to the north-east of Gavinton, are refurbished or reclad, the panel joints and window perimeters are part of the mastic package.
Gavinton is in the Scottish Borders. Anywhere in TD11, the process is the same: details in, fixed quote out, then sealing and a 12-month guarantee. Gavinton is one of 91 places we cover in the Scottish Borders for mastic packages. Sites around Edinburgh have their own page, about 35 miles away.
Work on mastic packages is covered throughout TD11. We cover commercial and managed buildings on Main Street, South Street and The Glebe and the roads nearby. If your building is just outside Gavinton, we cover Clockmill (1 mile north), Duns (1 mile north-east), Preston (3 miles north-east), Swinton (5 miles south-east) and Greenlaw (5 miles south-west). A short drive away, we cover Kelso (11 miles south), Eyemouth (13 miles north-east), Earlston (15 miles south-west), Lauder (15 miles west) and Chirnside (7 miles north-east).
Landmarks near Gavinton
A little further out are Jim Clark Motorsport Museum (1.4 miles north-east) and Langton Castle (1.1 miles north-west). Green spaces nearby include Duns Castle nature reserve and Duns Law.
General trades versus a specialist
What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are easy to get wrong without experience.
Certain joints really need a specialist: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. A poor seal in places like these tends to cost more to put right later.
Maintenance after handover
Sealant joints are maintenance items, and how long they last depends on how they’re treated. Our advice:
- Bring the mastic contractor in after the last trades are through
- Protect sealed areas from following trades
- Share drawings and the specification as soon as possible
- Keep scrapers and abrasive pads off new beads
Any damage after we have finished should go on the snag list right away. Snags can be picked up in a planned close-out visit as agreed in the quote.
A missed perimeter seal on one window can wet the reveal and the plaster inside. That normally means redoing finishes in a completed area. A check of every frame before decorators start is worth the time.
Questions we are asked in Gavinton
Do you cover business parks and estates near Gavinton, such as Duns Industrial Estate?
Yes, sites like Duns Industrial Estate are within our area, along with the rest of Gavinton. To start, just give us a call on 01277 525 020 or send details through our quote form with the unit, the joints involved and your access times.
Is hospital work, at somewhere like Knoll Community Hospital, something you do?
Yes, provided the work is planned with the site’s estates team. The estates team’s permit system and infection-control rules come first, and the work is planned around them.
Can you follow the specification on our project?
Yes. Send it with your enquiry, and we’ll price the work to it, flagging anything that needs clarifying.
How long does a typical visit take?
We plan the time on site around your programme and access. You will have an expected duration with the quote.
What happens if old sealant might contain asbestos?
Some older mastics, especially in pre-2000 buildings, can contain asbestos. Before we disturb old sealant in an older building, we ask to see the asbestos register or survey, and if asbestos is suspected, work stops until it’s tested. We don’t remove asbestos-containing materials.
What joints do you seal on a new build?
The scope comes from the specification and drawings, but frames, sanitary, kitchens, caulk where specified and snagging are typical.
Will you just go over the old sealant?
No. Failed sealant is removed and the faces cleaned back to sound, dry material first, since fresh sealant will not bond reliably to aged material.
Building owners, agents and FMs in Gavinton
Planned maintenance programmes are welcome: resealing failed joints building by building, on a schedule that suits your budget. Sites in Gavinton can sit alongside others in a wider programme across the Scottish Borders.
For main contractors, we work as the sealant subcontractor, on new build and refurbishment alike. Programme, specification and site rules come first, and our applicators hold CSCS cards.
Common problems we fix in Gavinton
Swapping the specified sealant for a cheaper general-purpose product is a common cause of failure. A general-purpose silicone on a facade or a caulk in a wet area won’t perform like the specified product. We stick to the specified product, or put any alternative to you first.
Site and facilities staff are often the first to spot these:
- Old sealant on a refurbishment that needs stripping before new work
- A mastic package split between trades with no clear owner
- Frame gaps too wide for sealant alone
- Sealant knocked or painted over by other trades
For contractors at a school such as Berwickshire High School, sealing has to be finished before term starts.
Before you book anyone
- Whether old or failed sealant will be cut out, not overlaid
- What the guarantee covers, and for how long
- Whether primer will be used where the manufacturer specifies it
- Their public liability cover